1. Made of high quality stainless steel, resistant to corrosion, solid and durable. 2. Includes 7 most used sizes: M3, M4, M5, M6, M8, M10, M12. 3. Packaged in a plastic box: organized by size in a transparent storage case for fast access and protection. 4. Turn the nut by hand without any other tool, easy to install. Suitable for electronic machines and equipment, communication equipment, hardware lighting, construction bridges, decoration of furniture, etc. Product description: Assortment of high quality ear nuts. Suitable for machines and equipment, equipment electronic, communication equipment, material lighting, buildings. The bridges, furniture decoration, etc. Made of high quality 304 stainless steel, resistant Corrosion, solid and durable. Organized by size in a transparent storage case for fast access and protection. Content: 25 pieces M3. 25 pieces M4. 20 pieces M5. 10 pieces M6. 10 pieces M8. 6 pieces M10. 4 pieces M12. CAUTION: Suffofage risk: Small parts, is suitable Not to children under 3 years old.